div class=trans-pagebuttonPage 1button div class=trans-image amp-img class=trans-thumb alt=Page 1: 31004 - Department of Mathematics Purdue UniversityttmChinApdf · 2020 10 17 · 31004 Created Date: 10162020 10:51:21 AM src=https:reader036fdocumentsusreader036viewer2022071413610c719a6e3d4b5d2a5f4b97html5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdiv